Earnings per share - Schedule of Earnings Per Share, Basic and Diluted (Details) - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Net income	$ 67,046	$ 68,099
Less net income attributable to non-controlling interest	55,119	55,119	$ 3,035	$ 2,622
Net income attributable to shareholders - basic	13,323	$ 13,323	$ 0	$ 0
Net income attributable to shareholders - diluted	$ 13,323
Weighted average shares outstanding - basic	26,254,167	26,254,167	0	0
Dilutive effect of unvested restricted common stock	7,940
Issued upon assumed exercise of outstanding stock options	0
Class B Common Stock converted to Class A Common Stock	0
Weighted average shares outstanding - diluted	26,262,107	26,262,107	0	0
Earnings Per Share, Basic [Abstract]
Basic	$ 0.51	$ 0.51	$ 0	$ 0
Diluted	$ 0.51	$ 0.51	$ 0	$ 0
ENE Onshore [Member]
Less net income attributable to non-controlling interest	$ (1,396)	$ (1,396)	$ (2,964)	$ (8,484)